{"product_id":"kerakoll-h40-extreme","title":"Kerakoll H40 Extreme hybrid two-component gel tile adhesive","description":"\u003cp\u003eIn pools, chlorinated water eventually dissolves traditional adhesive bonds. On metal and aluminum, cement adhesive barely sticks — tiles detach. Where water, chemicals, and thermal movement combine, reactive bonding is needed. H40 Extreme is a two-component, hybrid adhesive — holds underwater, on metal, and under chemical exposure. This is Kerakoll H40 Extreme.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eMade in Italy.\u003c\/b\u003e Kerakoll, Sassuolo — building material innovation since 1968. H40 Extreme is the renewed H40 tile adhesive line’s hybrid, two-component member — the line’s only reactive adhesive.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwimming pool and chlorinated water:\u003c\/strong\u003e does not dissolve the bond — after immersion in chlorinated water still ≥ 3 N\/mm² shear strength, durable underwater\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal, aluminum, deformable substrate:\u003c\/strong\u003e hybrid gel bond moves with it, does not detach — on aluminum heat-conductive film without primer, on metal and wood after \u003ca href=\"\/en\/products\/kerakoll-active-prime-grip\"\u003eActive Prime Grip\u003c\/a\u003e preparation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial floor, plant, chemical exposure:\u003c\/strong\u003e the two-component hybrid formula holds — reactive bonding where traditional cement adhesive fails\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal shock and temperature fluctuations:\u003c\/strong\u003e withstands between −40 °C and +90 °C — after thermal shock still ≥ 5.5 N\/mm², endures heating cycles and facade temperature changes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge tile (up to 160x320 cm):\u003c\/strong\u003e full bedding, no hollow spots — extra fluid gel, full back wetting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVertical surface:\u003c\/strong\u003e tile does not slip — slip-resistant (≤ 0.5 mm), can be applied on walls and facades from top to bottom\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjusting large tiles, your hand stops:\u003c\/strong\u003e no rushing, no premature setting — ≈ 180 minutes open time and ≥ 120 minutes correction time for double application and precise adjustment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo-component but no mixing errors:\u003c\/strong\u003e no need to weigh — the monopack 10 kg packaging contains A and B parts pre-measured precisely (8.6 : 1.4)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking indoors, living there too:\u003c\/strong\u003e no strong vapor, no risk — A+ indoor air class, low volatile organic compound emissions, EPD certified\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct family\u003c\/th\u003e\n\u003ctd\u003eH40 tile adhesive line (Gel + Advanced + Tech + Extreme)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHybrid two-component (A + B) reactive gel tile adhesive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClass\u003c\/th\u003e\n\u003ctd\u003eR2 T (EN 12004), GT-3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial requirement\u003c\/th\u003e\n\u003ctd\u003e≈ 1.45 kg\/m²\/mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLayer thickness\u003c\/th\u003e\n\u003ctd\u003e2–15 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePot life\u003c\/th\u003e\n\u003ctd\u003e≈ 110 minutes (+23 °C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOpen time\u003c\/th\u003e\n\u003ctd\u003e≈ 180 minutes (+23 °C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCorrection time\u003c\/th\u003e\n\u003ctd\u003e≥ 120 minutes (+23 °C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWalkable \/ grouting time\u003c\/th\u003e\n\u003ctd\u003e≈ 4 hours (+23 °C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeat resistance\u003c\/th\u003e\n\u003ctd\u003e−40 °C – +90 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePackaging\u003c\/th\u003e\n\u003ctd\u003emonopack 10 kg (8.6 + 1.4 kg), white\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStorage\u003c\/th\u003e\n\u003ctd\u003e≈ 24 months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eWhat is it suitable for?\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eTiling materials:\u003c\/strong\u003e Gres tiles in all sizes — from 30x30 cm tiles to 160x320 cm large slabs. Thin, laminated, and resin-backed gres tiles. Ceramic, marble, natural stone, glass and glass mosaic, terracotta, clinker, metal sheet, thermal and sound insulating panels.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSubstrates:\u003c\/strong\u003e Cement screed, concrete, lime and cement plaster, drywall, fiber-reinforced cement board, brick, aerated concrete. Existing, fixed, intact coverings. Underfloor heating, including screed-free, aluminum heat-conductive film preformed panels. Cracked screed. Thick-layer epoxy and polyurethane coatings. Rubber and PVC flooring (after cleaning with Keragrip Eco Pulep). Gypsum and anhydrite indoors, after EP21 dust binding.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWood, metal, metal sheet:\u003c\/strong\u003e After preparation with \u003ca href=\"\/en\/products\/kerakoll-active-prime-grip\"\u003eActive Prime Grip\u003c\/a\u003e — the hybrid bond holds even on deforming substrates.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpaces:\u003c\/strong\u003e Interior and exterior, floor and wall, terrace and balcony, facade, swimming pool and fountain, sauna and wellness. Residential, commercial, industrial projects and street furniture.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDirect contact with polystyrene (polystyrene, EPS, XPS) — the hybrid formula attacks it\u003c\/li\u003e\n\u003cli\u003e\nOn \u003ca href=\"\/en\/products\/kerakoll-aquastop-nanoflex\"\u003eAquastop Nanoflex\u003c\/a\u003e waterproof gel membrane\u003c\/li\u003e\n\u003cli\u003eFor substrates that are not perfectly dry and prone to moisture penetration\u003c\/li\u003e\n\u003cli\u003eFor filling substrate unevenness greater than 15 mm — first self-leveling (\u003ca href=\"\/en\/products\/kerakoll-planogel-ultra\"\u003ePlanogel Ultra\u003c\/a\u003e)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDifferent task?\u003c\/strong\u003e Standard tiling, large format, underfloor heating: \u003ca href=\"\/en\/products\/kerakoll-h40-gel\"\u003eH40 Gel\u003c\/a\u003e. Fast handover or cold season: \u003ca href=\"\/en\/products\/kerakoll-h40-advanced\"\u003eH40 Advanced\u003c\/a\u003e. Facade, moving cement substrate, fabric-reinforced large format: \u003ca href=\"\/en\/products\/kerakoll-h40-tech\"\u003eH40 Tech\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv style=\"position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/MJEyicDWQ8U?si=UvegC0OVsKYD0Ibl\" title=\"YouTube video player\" style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0;\"\u003e\n  \u003c\/iframe\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhy does chlorinated water dissolve tile adhesive in pools?\u003c\/strong\u003e \u003cbr\u003eIn a chlorinated pool continuously exposed to water, the bond of traditional cement adhesive weakens over time. The H40 Extreme hybrid tile adhesive maintains a shear strength of ≥ 3 N\/mm² even after immersion in chlorinated water — tested for pools and fountains.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is a hybrid, two-component tile adhesive?\u003c\/strong\u003e \u003cbr\u003eA reactive adhesive that must be mixed from two parts — A and B — before use. The setting is not triggered by water but by the reaction of the two components. That’s why it adheres where ordinary cement adhesive fails: underwater, on metal, under chemical exposure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich tile adhesive is needed for metal or aluminum substrates?\u003c\/strong\u003e \u003cbr\u003eA reactive, hybrid tile adhesive is required for metal and aluminum substrates — H40 Extreme. The hybrid gel bond moves with the metal’s thermal expansion and does not delaminate. It adheres to aluminum heat-conductive film without primer, and to metal and wood after \u003ca href=\"\/en\/products\/kerakoll-active-prime-grip\"\u003eActive Prime Grip\u003c\/a\u003e preparation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does the R2 T class and GT-3 rating mean?\u003c\/strong\u003e \u003cbr\u003eR2 T is the EN 12004 classification: R = reactive adhesive, 2 = improved performance, T = reduced slip. GT is Kerakoll’s own system test for torsion and bending — GT-3 is the highest flexibility rating.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhen is H40 Extreme needed and when is a simpler tile adhesive enough?\u003c\/strong\u003e \u003cbr\u003eH40 Extreme is for when water, chemicals, or metal substrates are all involved: pools, industrial floors, aluminum panels. For standard tiling on smooth cement substrates, \u003ca href=\"\/en\/products\/kerakoll-h40-gel\"\u003eH40 Gel\u003c\/a\u003e is simpler and more economical — it is one-component, only water needs to be added.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy is the hybrid tile adhesive more expensive than the traditional one?\u003c\/strong\u003e \u003cbr\u003eBecause it is a two-component, reactive formula — it adheres even where cement adhesive fails: underwater, on metal, under chemical exposure. Repairing a delaminated pool lining or industrial floor costs many times more than the adhesive itself. Where there is no such exposure, \u003ca href=\"\/en\/products\/kerakoll-h40-gel\"\u003eH40 Gel\u003c\/a\u003e is cheaper and sufficient.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhen should I not choose H40 Extreme?\u003c\/strong\u003e \u003cbr\u003eIt cannot be applied directly on polystyrene (EPS, XPS) insulation and does not fill substrate defects larger than 15 mm — for these, a self-leveling compound is needed first (\u003ca href=\"\/en\/products\/kerakoll-planogel-ultra\"\u003ePlanogel Ultra\u003c\/a\u003e). On smooth cement substrates without water or chemical exposure, \u003ca href=\"\/en\/products\/kerakoll-h40-gel\"\u003eH40 Gel\u003c\/a\u003e is more economical.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow many m² does a 10 kg monopack cover?\u003c\/strong\u003e \u003cbr\u003eMaterial requirement ≈ 1.45 kg\/m²\/mm layer thickness. A 10 kg package covers approximately 1.4-1.7 m² on small tiles (4-5 mm bedding) and 0.7-0.85 m² on large slabs (8-10 mm, two coats).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhen can you walk on it and fill the pool?\u003c\/strong\u003e \u003cbr\u003eAt +23 °C, the surface is walkable and grouting is possible after ≈ 4 hours. Pools can be filled after ≈ 3 days. The substrate must first have \u003ca href=\"\/en\/collections\/vizszigeteles\"\u003eKerakoll waterproofing\u003c\/a\u003e — H40 Extreme bonds to that.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow to mix the two-component adhesive?\u003c\/strong\u003e \u003cbr\u003eThe monopack contains both parts pre-measured — in an 8.6 : 1.4 ratio. Part B must be poured from the B bucket into part A, then mixed until the color is uniform. Before use, keep the packaging at ≈ +20 °C for 2-3 days.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I apply it myself?\u003c\/strong\u003e \u003cbr\u003eYou can apply it, but the two-component mixing and hybrid application must be done precisely — especially in pools, on metal substrates, with large tiles. For underfloor heating and critical substrates, rely on our Kerakoll-certified tiling master; we also offer installation services.\u003c\/p\u003e\n\u003ch2\u003eH40 System\u003c\/h2\u003e\n\u003cp\u003eH40 is the Kerakoll structural gel adhesive line — every member tested with the GT method, suitable for porcelain, ceramic, and natural stone. All are suitable for indoor and outdoor use, underfloor heating, terraces, and swimming pools. Extreme is the only hybrid, two-component reactive member of the line.\u003c\/p\u003e\n\u003ch3\u003eH40 tile adhesive line — which one do you need?\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eClassification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eGeneral tiling, large tile, underfloor heating\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/en\/products\/kerakoll-h40-gel\"\u003eH40 Gel\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eGT-2, C2 TE S1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFast delivery, cold season, water-sensitive natural stone\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/en\/products\/kerakoll-h40-advanced\"\u003eH40 Advanced\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eGT-2, C2F TE S1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFacade, moving substrate (wood, metal), large tile reinforced with fabric\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/en\/products\/kerakoll-h40-tech\"\u003eH40 Tech\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eGT-3, C2 TE S2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePool, chemical and thermal stress, metal substrate — hybrid bonding\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eH40 Extreme\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGT-3, R2 T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003eSee the entire H40 family in the \u003ca href=\"\/en\/collections\/ragasztok-csemperagaszto\"\u003etile adhesives\u003c\/a\u003e category. The system is completed with \u003ca href=\"\/en\/collections\/kerakoll-color-fill\"\u003eColor Fill\u003c\/a\u003e decorative grouts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePrimers:\u003c\/strong\u003e on gypsum and anhydrite substrates, EP21 dust binding is required before bonding (indoor use only). On wood, metal, and PVC substrates, \u003ca href=\"\/en\/products\/kerakoll-active-prime-grip\"\u003eActive Prime Grip\u003c\/a\u003e preparation is necessary. H40 Extreme can be applied without primer on aluminum heat-conductive film.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWaterproofing:\u003c\/strong\u003e in wet areas and pools, H40 Extreme provides a monolithic, waterproof system with the \u003ca href=\"\/en\/collections\/vizszigeteles\"\u003eKerakoll waterproofing\u003c\/a\u003e product line.\u003c\/p\u003e","brand":"Kerakoll","offers":[{"title":"Fehér \/ 10 KG (8.6 + 1.4 KG)","offer_id":56763596996932,"sku":"K003HD","price":41350.0,"currency_code":"HUF","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0635\/8027\/4946\/files\/Kerakoll-H40-extreme-hibrid-csemperagaszto-exrem-felhasznalashoz_1.jpg?v=1779030512","url":"https:\/\/www.masterworks.hu\/en\/products\/kerakoll-h40-extreme","provider":"Masterworks Hungary","version":"1.0","type":"link"}